A beautiful diamond ring should fit perfectly on the finger, not too tight and not too loose. But it can be difficult to accurately size a finger at home – but it’s essential to get the right size if you are going to buy online!

Can I measure my ring finger at home?

Yes, you can! All you need is a ruler, a piece of paper or string, and a sizing chart to convert your measurements into a standard ring size that any jeweller can use.

How to measure your ring size at home

- Wrap a thin strip of paper, string, or tape snugly around your finger, just below the knuckle.

- Mark the point where the ends meet.

- Measure the length of the marked paper, string, or tape using a ruler.

- Match your measurement to a ring size chart to find your accurate ring size.

Why is it important to have a correctly sized ring?

Wearing a correctly sized ring is crucial for both comfort and practicality. A ring that’s too tight can cause discomfort, restrict blood circulation, and even lead to swelling or injury. On the other hand, a loose ring can easily slip off without you noticing, increasing the risk of losing it.

By ensuring the perfect fit, you’ll not only avoid these potential issues but also enjoy your jewellery with confidence and peace of mind. Also keep in mind a bulging finger with a tight ring doesn't look appealing, you want your new diamond ring to look as stunning as possible.

Sizes (British) Internal Diameter (mm)
G 14.36
G1/2 14.56
H 14.65
H1/2 14.86
I 15.04
I1/2 15.27
J 15.40
J1/2 15.70
K 15.80
K1/2 16.00
L 16.10
L1/2 16.41
M 16.51
M1/2 16.71
N 16.92
N1/2 17.13
O 17.35
O1/2 17.45
P 17.75
P1/2 17.97
Q 18.19
Q1/2 18.35
R 18.61
R1/2 18.80
S 19.10
S1/2 19.31
T 19.51
T1/2 19.84
U 20.02
U1/2 20.20
V 20.32
V1/2 20.68